CN102911653A - Formula development for mahogany petroleum sulfonate surfactant - Google Patents
Formula development for mahogany petroleum sulfonate surfactant Download PDFInfo
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- CN102911653A CN102911653A CN2012104282243A CN201210428224A CN102911653A CN 102911653 A CN102911653 A CN 102911653A CN 2012104282243 A CN2012104282243 A CN 2012104282243A CN 201210428224 A CN201210428224 A CN 201210428224A CN 102911653 A CN102911653 A CN 102911653A
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- petroleum sulfonate
- sulfonate surfactant
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- surfactant
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Abstract
The invention relates to mahogany petroleum sulfonate surfactant, which is mainly applied to a dual-driving project in tertiary oil recovery of an oil field. According to the technology, the main production raw material vacuum residuum is from in-place oil, the mahogany petroleum sulfonate surfactant, generated by blending composition and sulfonation of distillate oil after refining with the high temperature of more than 400 DEG C, is compounded with polymer to be injected into the formation and belongs to the same clan and origin as landed crude oil, and under the synergistic effect with the polymer, the mahogany petroleum sulfonate surfactant can wash out the crude oil detained in the formation well, the oil recovery ratio is improved by more than 8% compared with water drive, and the mahogany petroleum sulfonate surfactant has favorable properties of temperature resistance and salt resistance, and has good broad-spectrum performance. The current surfactant in the market is difficult to adapt to various reservoir conditions, so that the mahogany petroleum sulfonate surfactant can be better popularized and applied.
Description
One, technical field
The petroleum sulfonate surfactant that the present invention develops, can guarantee that water content is not more than 48%, working substance content is greater than 48%, zero pour is greater than more than 8 ℃, the polymkeric substance of proportioning 500-3000 ten thousand molecular weight, usage quantity is in the situation that 0.1-0.3%, interfacial tension reaches below the ultralow 9x10-3, cooperates the polymkeric substance tertiary oil recovery can improve recovery ratio more than 8%.
Two, background technology
Development of Henan oilfield more than 20 years, have following problem:
(1) the waterflooding development later stage quickening of successively decreasing, the unit recovery percent of reserves is low;
(2) injection into an aquifier utilization ratio is low, and plane and vertical stratum capacity volume variance are large;
(3) the superimposed thickness of oil reservoir is large, the number of plies is many, and interlayer is employed and differed greatly;
(4) well pattern is difficult to adapt to the needs that high water-cut stage improves development effectiveness at present.
But theoretical investigation and field test proof binary are driven and can be improved by a relatively large margin recovery ratio, binary combination flooding has higher recovery ratio than single flooding method, mainly be that they play a part separately therein owing to the polymkeric substance in the combination flooding agent and the synergistic effect between the petroleum sulfonate surfactant.The effect of petroleum sulfonate surfactant is: 1. can reduce the interfacial tension of polymers soln and oil, improve the washing oil ability; 2. can make oily emulsification, improve the viscosity of displacement of reservoir oil medium; If 3. tensio-active agent and polymer formation chelation structure can improve the tackifying ability of polymkeric substance.Therefore, it is a kind of novel Chemical Flooding Fluids of setting up on the basis that combines single chemical flooding advantage.
Both at home and abroad the part oil field had carried out successively that agent is driven to show to live, the chemical flooding technical study such as binary and ternary composite driving on the basis of carrying out the polymer flooding industrial applications in recent years, and had successfully carried out the mining site pilot test.
Three, summary of the invention
Experiment through a large amount of technical investigations and like product is preferred, the petroleum sulfonate surfactant prescription that this project is developed adapts to moisture, the high oil-field development of permeating of this height in oil field, Shuan He oil field, and economical and practical, cheap, the follow-up dehydrating of crude oil of system and water conditioning are not exerted an influence.
The present invention relates to a kind of petroleum sulfonate surfactant and preparation method thereof, include component Z and component N, S and water, wherein, component Z is vacuum residuum, and component N is NP; S is industrial SO3.
The mechanism of petroleum sulfonate surfactant of the present invention is: by the ground injection device well is injected the tensio-active agent of steady concentration and the compound system of polymkeric substance, its effect is to reduce oil water interfacial tension, improves better displacement efficiency.Compound system then utilizes the chemical cooperated effect of polymkeric substance and tensio-active agent, will be detained the irreducible oil on stratum and " wash by force " out on the basis of improving water drive swept volume, reduction profit mobility ratio, thereby improve oil recovery factor.
Being formulated as follows of petroleum sulfonate surfactant:
The preparation method: the weight percentage of each component is: component Z30-60%, component N 1-3%, S are 1-6%, and all the other are water.
With temperature at 30 ℃--40 ℃ Z300-600 kilogram, the S that uses the 1-6 kilogram by 60-65 ℃ of sulphonation kettle carries out sulfonation, it is composite that the component N medicament that successively adds the water of 440-600 kilogram and 1-3 kilogram fully dissolves neutralization, continues to stir with agitator, until all dissolving is evenly.
Four, embodiment
Rig-site utilization situation of the present invention: in April, 2009, product joins 12 mouthfuls of Injection Wells at 438 blocks.At newly-built sledge-borne type heating unit one cover of 438 blocks, with the water mixing Mixed Pharmacy before the water jacket furnace heating, then squeeze into water injection well by the pressurization of metering dosing pump, through nearly 2 years injection, injection rate amounts up to 6385 tons, 438 block comprehensive water cut drop to 80% by original more than 95%, average injection pressure is brought up to 12MPa by original 7MPa, the average day produce oil of block is brought up to 53 tons/day from 28 tons/day, recovery ratio improves more than 12% than water drive, has guaranteed that this block reaches stable yields, the volume increase in 3 years.By in January, 2012, this block accumulative total increases 1.7 ten thousand tons of oil, and input-output ratio reaches 1: 4.3, for huge contribution has been made in the production in this oil field.
Claims (2)
1. petroleum sulfonate surfactant, its composition is vacuum residuum, NP, SO3 and water etc., wherein: the mass ratio of vacuum residuum, NP, SO3 and water is 6: 440 ∽ 600 of 300 ∽, 3: 1 ∽ of 600: 1 ∽.
2. vacuum residuum according to claim 1, its Chemical Composition is heavy alkylbenzene sulfonate, is the black thick liquid.Its chemical name of NP is polyoxyethylene nonylphenol ether, is colourless transparent liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104282243A CN102911653A (en) | 2012-11-01 | 2012-11-01 | Formula development for mahogany petroleum sulfonate surfactant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104282243A CN102911653A (en) | 2012-11-01 | 2012-11-01 | Formula development for mahogany petroleum sulfonate surfactant |
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| CN102911653A true CN102911653A (en) | 2013-02-06 |
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| CN2012104282243A Pending CN102911653A (en) | 2012-11-01 | 2012-11-01 | Formula development for mahogany petroleum sulfonate surfactant |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763801A (en) * | 2017-11-29 | 2019-05-17 | 中国石油天然气股份有限公司 | Skid-mounted modular polymer-surface binary flooding injection allocation device suitable for complex block oil field |
| CN109772202A (en) * | 2018-09-17 | 2019-05-21 | 中国石油天然气股份有限公司 | Device and method for adding surfactant for oil displacement |
| CN110305646A (en) * | 2018-03-27 | 2019-10-08 | 中国石油天然气股份有限公司 | viscosity reducer and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191030A (en) * | 2010-03-19 | 2011-09-21 | 中国石油天然气股份有限公司 | Oil-displacing surfactant and preparation method thereof |
| CN102453496A (en) * | 2010-10-25 | 2012-05-16 | 中国石油化工股份有限公司 | Demulsifying agent and hydrocarbon oil demulsification method |
-
2012
- 2012-11-01 CN CN2012104282243A patent/CN102911653A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191030A (en) * | 2010-03-19 | 2011-09-21 | 中国石油天然气股份有限公司 | Oil-displacing surfactant and preparation method thereof |
| CN102453496A (en) * | 2010-10-25 | 2012-05-16 | 中国石油化工股份有限公司 | Demulsifying agent and hydrocarbon oil demulsification method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763801A (en) * | 2017-11-29 | 2019-05-17 | 中国石油天然气股份有限公司 | Skid-mounted modular polymer-surface binary flooding injection allocation device suitable for complex block oil field |
| CN110305646A (en) * | 2018-03-27 | 2019-10-08 | 中国石油天然气股份有限公司 | viscosity reducer and preparation method and application thereof |
| CN109772202A (en) * | 2018-09-17 | 2019-05-21 | 中国石油天然气股份有限公司 | Device and method for adding surfactant for oil displacement |
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Addressee: Beijing Huazilong Technology Co.,Ltd. Document name: Notification that Application Deemed to be Withdrawn |
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Application publication date: 20130206 |